Foreign money invested in bank not long ago (8)
I believe the answer is:
recently
'not long ago' is the definition.
(I've seen this before)
'foreign money invested in bank' is the wordplay.
'foreign money' becomes 'cent' (denomination of foreign currencies eg the euro).
'invested in' indicates putting letters inside.
'bank' becomes 'rely' (to bank on something is to rely on it).
'cent' going into 'rely' is 'RECENTLY'.
(Other definitions for recently that I've seen before include "Lately" , "Adverb meaning not long ago" , "Happening not long ago" , "Not so long since" , "In the near past" .)